Category: V
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Verruca plana
Is a reddish-brown or flesh-colored, slightly raised, flat-surfaced, welldemarcated papule on the hand and face, also called flat wart. A small, smooth wart that often appears in groups on the face, neck, back of the hands, wrists, and knees.
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Verotoxin
A Shiga-like toxin produced by Escherichia coli, which disrupts the function of ribosomes, causing acute renal failure. A heat-labile toxin produced by some types of Escherichia coli.
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Vermifuge
A substance used to expel worms from the intestines. An agent that causes the expulsion of intestinal worms. An agent that causes the body to expel intestinal worms. Having worm-killing properties; an agent that kills worms. Substance that kills or expels intestinal worms. Destroys intestinal parasites. A substance which removes worms from the intestine. Destroying…
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Venule
A small vein, especially one joining capillaries to larger veins. A small vein or vessel leading from tissue to a larger vein. The minute vessels that collect blood from the capillary plexuses and join together to form veins. The smallest branches of the veins. One that extends from a capillary network and merges to form…
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Venereal disease (VD)
Term given to the diseases syphilis and gonorrhoea. Diseases that are chiefly transmitted through intimate sexual contact. Also called sexually transmitted diseases or sexually transmitted infections. A disease which is passed from one person to another during sexual: intercourse. A group of diseases passed between people during sexual intercourse, today often called sexually transmitted diseases…
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VEGF
Vascular endothelial growth factor.
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Vasospasm
Refers to a condition in which blood vessels spasm, leading to vasoconstriction and subsequently to tissue ischemia and death (necrosis). Sudden decrease in the size of a blood vessel. Spasmodic contraction of blood vessels. A muscle spasm causing the fingers to become cold, white and numb. The constriction or narrowing of blood vessels as a…
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Vasodilatory
Causing the widening of the lumen of blood vessels.
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Vasodilator
Drug that causes dilation or relaxation of blood vessels. Relaxes and widens blood vessels. A substance that causes an increase in the internal diameter of blood vessels. Agent that dilates the blood vessels and so improve circulation. Drug or agent causing relaxation and expansion of the blood vessels. An agent that encourages the relaxation of…
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Vasa vasorum
Is a network of small blood vessels that supply large blood vessels. plur. vasa vasori. Minute blood vessels in the walls of larger arteries and veins. The tiny arteries and veins that supply the walls of blood vessels. Minute blood vessels that are distributed to the walls of the larger veins and arteries.